I am installing a GB162 boiler what size flue do I need to use?
There are two flue sizes available for the GB162 suitability will depend on the output of the boiler.
The 80/125 flue system is only suitable for use with the 50kW and 65kW version of the GB162, whereas the 100/150 flue system is the standard flue for the 80kW and 100kW versions. The 100/150 flue system can be used on the 50kW and 65kW for longer flue runs.
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